Oooh I like this one. This has been a really good cycle. That sword/outfit looks familiar, is this a legend we've already been introduced to that's about to die?

It appears to be Otrimi, the Ever-Playful playing the deadly trick here, which fits the flavor. So my guess would be this goes in that deck even though I previously assumed this cycle would be distributed to the "middle" color of each wedge.

This is an exceptionally great card in most black-based commander decks. It's going to be free more often than not, and even paying for it is not a bad deal. It's not even a sorcery, which I think could have been justified.

It's an instant-speed removal spell without targeting conditions that nails indestructible creatures that you can cast for free. While I hesitate to label any cards as "windmill slams" in EDH the way I would for cubes, this seems like a notable exception. You need to have a pretty good reason not to run this in a black deck.

Probably worth to include even in a cEDH Sushi hulk, as this does a lot of work with the cheap commanders against anything that could beat you (it exiles all the engine commanders and being instant, you can just have it all the time, really strong removal).